SEAsonSolt
New Head-Fier
- Joined
- Mar 6, 2009
- Posts
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Amps Stories 1
Foreword:
It’s nice to meet everybody here.
I am a “theme editor” from www.erji.net，one of the best forum in China and even Asian areas which focus on headphone, earphone, Amps , portable Amps and so on.
Recently I often surf the head-fi forum for more info which can’t find on Aisan forums .
My interests into head-fi was piqued by Master EFN here , his description of Minibox-E+ is great and just like my view on this little amp.
So ,first here ,I want say something about minibox-e+ ,on a Chinese customer ‘s view .
[size=xx-small]My minibox-e+[/size]
[size=xx-small]with OPA627[/size]
As follows :
Pictures of MiniBox-E+
Three Stones MiniBox-E+
OP8610+BUF(634)
OP-AMP requirement: Most DIP8 mono op-amp
Frequency: 10Hz-60KHz??v-3dB/+0.7dB??
Output Impedance:16Ω-300Ω
SNR: >110dB
THD+N: 0.0035%
Battery Type: Li-ion
Battery charge time:10~15 hours
Battery Work Life:about 60 hours
Dimensions: 80mm*67mm*16mm
My Companion Gears:
ETYMOTIC ER-4p IEM with P2S converts
Panasonic SL-CT810
Portable AMPs:Minibox-E+(both of AD8065AR and OPA627),Virgo v200 and virgo v500
[size=xx-small]Pictures of them[/size]
Sound Review
Soundstage:I prefer to use OPA627 rather than AD8065,the former has a deeper soundstage , and provide a huge imaging space , though wasn't the WORLD's widest.
Treble: Although OPA627 has a better control of Treble performance . but also lacks a little top end extension and air, considered I was using the famous ER4S which was famous for its clear, clean, and much detailed treble. His performance is quite to accept . but the Amp Virgo really WOWed me, with his help the treble sounds like ‘warm spring in Japan’ ,that means while provide much detail the top end extension and air is also included (which I will provide detail in <amp stories 2>).
Midrange: I agree with the words written by Master “skylab” that “A tiny bit laid back, but generally clean and enjoyable. A touch on the warm side of neutral. Generally excellent though.” Though is used a OPA627 . but I really believe those words was just written for Minibox-E+ (OPA627).
Bass: with bass boost on, the bass once was tightly controlled now it has commanding authority in visceral impact and slam.
Conlusion：
Made by Master Tree Stone ,Minibox-E + provide a very satisfied performance , and a lot of people here already have one . Actually I am not quite satisfied with its treble performance , perhaps because of the virgo amp, which provide a terrific treble and soundstage I ever heard. Wow I will share my feelings of this amp in my next ‘amp story’.
[size=xx-small]Virgo—my best love[/size]
THANK You!
Foreword:
It’s nice to meet everybody here.
I am a “theme editor” from www.erji.net，one of the best forum in China and even Asian areas which focus on headphone, earphone, Amps , portable Amps and so on.
Recently I often surf the head-fi forum for more info which can’t find on Aisan forums .
My interests into head-fi was piqued by Master EFN here , his description of Minibox-E+ is great and just like my view on this little amp.
So ,first here ,I want say something about minibox-e+ ,on a Chinese customer ‘s view .
[size=xx-small]My minibox-e+[/size]
[size=xx-small]with OPA627[/size]
As follows :
Pictures of MiniBox-E+
Three Stones MiniBox-E+
OP8610+BUF(634)
OP-AMP requirement: Most DIP8 mono op-amp
Frequency: 10Hz-60KHz??v-3dB/+0.7dB??
Output Impedance:16Ω-300Ω
SNR: >110dB
THD+N: 0.0035%
Battery Type: Li-ion
Battery charge time:10~15 hours
Battery Work Life:about 60 hours
Dimensions: 80mm*67mm*16mm
My Companion Gears:
ETYMOTIC ER-4p IEM with P2S converts
Panasonic SL-CT810
Portable AMPs:Minibox-E+(both of AD8065AR and OPA627),Virgo v200 and virgo v500
[size=xx-small]Pictures of them[/size]
Sound Review
Soundstage:I prefer to use OPA627 rather than AD8065,the former has a deeper soundstage , and provide a huge imaging space , though wasn't the WORLD's widest.
Treble: Although OPA627 has a better control of Treble performance . but also lacks a little top end extension and air, considered I was using the famous ER4S which was famous for its clear, clean, and much detailed treble. His performance is quite to accept . but the Amp Virgo really WOWed me, with his help the treble sounds like ‘warm spring in Japan’ ,that means while provide much detail the top end extension and air is also included (which I will provide detail in <amp stories 2>).
Midrange: I agree with the words written by Master “skylab” that “A tiny bit laid back, but generally clean and enjoyable. A touch on the warm side of neutral. Generally excellent though.” Though is used a OPA627 . but I really believe those words was just written for Minibox-E+ (OPA627).
Bass: with bass boost on, the bass once was tightly controlled now it has commanding authority in visceral impact and slam.
Conlusion：
Made by Master Tree Stone ,Minibox-E + provide a very satisfied performance , and a lot of people here already have one . Actually I am not quite satisfied with its treble performance , perhaps because of the virgo amp, which provide a terrific treble and soundstage I ever heard. Wow I will share my feelings of this amp in my next ‘amp story’.
[size=xx-small]Virgo—my best love[/size]
THANK You!
